Low oil prices have triggered an economic crisis in Venezuela, which has the largest reserves of oil in the world. The plunge in oil revenue has exposed the failure of the country's leadership to diversify the economy.

Power, food and medical shortages are now commonplace as the country descends into crisis.

With mass protests and more than two-thirds of Venezuelans believing that President Nicolás Maduro should be relieved of his office, how much longer can this state of affairs continue?